CMB18-08BPPEC0SA00, SICK, capacitive sensor M18x1, 0–8mm, PNP, connector M12 4pin, IO-Link 1.1

CMB18-08BPPEC0SA00, SICK, capacitive sensor M18x1, 0–8mm, PNP, connector M12 4pin, IO-Link 1.1

CMB18-08BPPEC0SA00 (SICK 6080638) is a cylindrical capacitive sensor with adjustable sensitivity. Sensing distance 0 mm–8 mm, PNP output; electrical connection Connector M12, 4-pin. The suitability for detecting a specific material is verified in the real installation.

Technical specifications

Working principle of a capacitive sensor

A capacitive sensor creates an electric field in front of the active face. An approaching material changes the capacitance of the measuring system and the electronics evaluate the switching state. Unlike an inductive sensor, it can also respond to non-metallic materials such as plastic, glass or liquid. The actual sensitivity depends on the material properties, humidity and installation geometry.

Typical applications of this variant

The CMB series combines capacitive switching with an IO-Link interface, so depending on the configuration the status and diagnostic data of the sensor can be read. It is suitable where local sensitivity adjustment and integration of data into the machine control are useful.

Mounting and sensitivity adjustment

Installation: Flush. The effective range may differ between flush and non-flush installation. Set the sensitivity for the actual material, distance and surrounding metal parts. Before replacing with another sensor, check not only the size but also PNP/NPN, NO/NC, supply and wiring.

Wiring and correct selection

For the control system, check the compatibility of the input with the output PNP, the supply voltage and the assignment of wires or pins. Different variants of the series may have different connectors, cables and contact functions. The integrated IO-Link interface requires a suitable IO-Link master; standard switching and IO-Link diagnostics must be distinguished.

FAQ

Does the sensor detect only metal? No. The capacitive principle can also detect non-metallic substances; the effective distance depends on the material.

What is important when choosing a replacement? Order number, shape and mounting, range Sn, output, supply and the exact connection.

Is the stated distance always achievable? No. The manufacturer's parameter applies under specified conditions; after installation we recommend testing the detection of the specific target.

TECHNOLINE – technical note: The rated range is not a universal detection distance for all materials. For safety-critical applications, first verify the conditions in the manufacturer's datasheet and on the equipment.